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The authors were the first to study the main parameters of the mineral metabolism of plants that grow in the Plast Region of the Chelyabinsk Oblast in biogeocenosis with different technogenic impact. The study included the samples of plants taken from the surface of the Novotroitsk tailing dump of the gold-arsenic deposit and similar samples from the reference areas (>15 km from the technogenic formation). The samples of spring sedge (Carex praecox), feather grass (Stipa pennata), poison hemlock (Conium maculatum)...